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 A032912 Numbers whose set of base-5 digits is {1,3}. 2
 1, 3, 6, 8, 16, 18, 31, 33, 41, 43, 81, 83, 91, 93, 156, 158, 166, 168, 206, 208, 216, 218, 406, 408, 416, 418, 456, 458, 466, 468, 781, 783, 791, 793, 831, 833, 841, 843, 1031, 1033, 1041, 1043, 1081, 1083, 1091, 1093, 2031, 2033 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Or, Numbers all of whose base-5 digits are odd. LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 MATHEMATICA Flatten[Table[FromDigits[#, 5]&/@Tuples[{1, 3}, n], {n, 5}]] (* Vincenzo Librandi, Jun 01 2012 *) PROG (MAGMA) [n: n in [1..2500] | Set(IntegerToSequence(n, 5)) subset {1, 3}]; // Vincenzo Librandi, Jun 01 2012 CROSSREFS Cf. A007091. Sequence in context: A320687 A340494 A039567 * A123208 A179652 A253855 Adjacent sequences:  A032909 A032910 A032911 * A032913 A032914 A032915 KEYWORD nonn,base AUTHOR STATUS approved

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Last modified May 23 09:46 EDT 2022. Contains 353975 sequences. (Running on oeis4.)